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发明名称
Paper clip
摘要
申请公布号
US2781566(A)
申请公布日期
1957.02.19
申请号
US19530340081
申请日期
1953.03.03
申请人
LEE HAMMER WILLIAM
发明人
HAMMER WILLIAM LEE
分类号
B42F1/08
主分类号
B42F1/08
代理机构
代理人
主权项
地址
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